The dynamic characteristics were calculated by the WTCM, and then the transient responses of dual-rotorsystem were solved.
采用整体传递系数法计算转子系统的动力特性，进而求解双转子系统的瞬态响应。
2
An improved transfer matrix method-Whole transfer matrix method was applied to calculation of the critical speeds and vibration modes of a dual-rotorsystem with engine casing.
There is inevitable unbalance in the dual-rotorsystem of the aero-engine, the beat vibration will occur to engine when two rotors are operating at approximately the same speed.